Halon Fire Extinguishers are recommended for protection of delicate, sensitive and expensive computers, electrical equipment, tapes and film, automotive and aircraft engines, laboratory chemicals and equipment. Halon Extinguishers can also be used in bedrooms, home offices, home kitchens, cars, and garages. Halon Extinguishers are used for fighting class B and class C fires (And sometimes A Fires). Halon uses a liquefied gas, pressurized with nitrogen, which discharges as a vapor causing no cold or static shock and no impairment of the operator's vision.